Sharp CDC2900 - 3-CD Compact Stereo System Service Manual page 52

CD-C622/C2900
IC701 RH-iX0280AWZZ:System Microcomputer (IX0280AW) (1/2)
Pin No. Port Name Terminal Name
1 VDD VDD
2* P37 ENA
3 P36 DO
4 P35 DI
5 P34 CE
6 P33 CLK
7,8* P32, P31 LCK1, LCK2
9 P30 RWC
10 RESET RESET
11 X2 X2
12 X1 X1
13 Vpp VPP
14* XT2 XT2
15 P04 WRQ
16 VDD VDD
17 P27 PCCL
18 P26 COIN
19 P25 SQOUT
20 P24 CQCK
21 P23 DSP RES
22 P22 FRF (DRF)
23 P21 SLD+
24 P20 SLD-
25 AVss AVSS
26 ANI7 SPEANA3
27 ANI6 SPEANA2
28 ANI5 SPEANA1
29* ANI4 TUN SM
30 ANI3 T2 RUN
31-33 ANI2-ANI0 KEYIN3-KEYIN1
34 AVDD AVDD
35 AVREF AVREF
36 P03 PUIN SW
37 P02 O/C SW
38 INTP1 SYS STOP
39 INTP0 REMOCON
40 Vss VSS
41 P74 DNO SW
42 P73 U/D SW
43 P72 TIMER LED
44 P71 T_SOL
45 P70 T_MOT
46 VDD VDD
47 P127 CAM SW
48 P126 TIFAS
49 P125 FPA
50 P124 H/P
51 P123 AC RLY_CONT
52 P122 REC/PLAY
53 P121 T_BIAS
54 P120 T_T1T2
55 P117 DISTO
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Input/Output
— (+) POWER SUPPLY
Output DOLBY PROLOGIC ENABLE TERMINAL
Input DATA INPUT
Output DATA OUTPUT
Output CE OUTPUT
Output CLOCK OUTPUT
Output
Output CD DSP READ WRITE CONTROL
Input RESET
Output MAIN CLOCK
Input MAIN CLOCK
— POWER SUPPLY TERMINAL
— OPEN
Input CD DSP WRITE REQUEST
— (+) POWER SUPPLY
Output CD DSP PCCL
Outout CD DSP COMAND
Input CD DSP CODE Q OUT
Output CD DSP CLOCK
Output CD DSP RESET
Input CD RF LEVEL DETECTION
Output CD SLIDE MOTOR +
Output CD SLIDE MOTOR -
— ANALOG GROUND
Input SPEANA DATA INPUT 16 KHz
Input SPEANA DATA INPUT 1 KHz
Input SPEANA DATA INPUT 63 Hz
Input TUNER SIGNAL METER INPUT
Input TAPE2 RUN PULSE INPUT
Input KEY INPUT
— ANALOG VDD
— ANALOG REF VOLTAGE
Input CD PUIN SWITCH
Input CD OPEN/CLOSE SWITCH
Input SYSTEM STOP INPUT
Input REMOCON INPUT
— GROUND VOLTAGE
Input CD DISC NO. SWITCH
Input CD UP/DOWN SWITCH
Output TIMER LED CONTROL
Output TAPE SOLENOID CONTROL
Output TAPE MOTOR CONTROL
— (+) POWER SUPPLY
Input TAPE CAM SWITCH
Input TAPE1 FULL AUTOSTOP PULSE INPUT
Input TAPE2 A-SIDE FULL PROOF
Input HEADPHONE INPUT
Output AC RELAY CONTROL
Output TAPE REC/PLAY CHANGE
Output TAPE Record bias control
Output TAPE T1/T2 CHANGE
Input DISTINATION INPUT
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Function